Researched by Helena DeMaria-Williams
Formula IngredientHumectant, SolventPropanediol
INCI: Propanediol
Propanediol (1,3-propanediol) is a naturally derived diol produced sustainably from corn sugar, and is Ecocert approved. It functions primarily as a humectant and solvent, drawing moisture into the skin while also improving the spreadability and texture of formulations. It is widely regarded as a gentler, more skin-compatible alternative to propylene glycol.
Category
Humectant, Solvent
Irritation Risk
Low
Skin Types
all skin types, sensitive skin, oily, acne-prone, dry, combination
What does this do in a formula?
hydration, improved product texture, preservative boosting, skin conditioning, solvent for actives
Is Propanediol safe? Key considerations
Can Propanediol cause irritation?
Low RiskPropanediol is well-tolerated across skin types and is considered one of the least irritating glycol alternatives. Unlike propylene glycol, it has a low sensitisation potential and is suitable for sensitive skin. No Annex II or III restrictions under EU CosIng.
Does Propanediol increase sun sensitivity?
No RiskPropanediol does not increase photosensitivity. No SPF precautions are required when using products containing this ingredient.
Is Propanediol safe during pregnancy?
SafePropanediol is considered safe for use during pregnancy at standard cosmetic concentrations. It is not systemically absorbed to a clinically significant degree through intact skin, and no reproductive or developmental concerns have been identified in available safety data.
How does Propanediol work?
Propanediol (1,3-propanediol) is a naturally derived diol produced sustainably from corn sugar, and is Ecocert approved. It functions primarily as a humectant and solvent, drawing moisture into the skin while also improving the spreadability and texture of formulations. It is widely regarded as a gentler, more skin-compatible alternative to propylene glycol.
Individuals with known allergy to corn-derived ingredients (rare) should review the considerations above before use.
In our shop
